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EVM System Design/Calculation - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

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Pär Åhlund
Post subject: EVM system design/calculation
Unread postPosted: Mon Jun 13, 2005 6:54 am
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Joined: Mon Jun 13, 2005 6:49 am
Posts: 1
Hi
Do any of you have a recomendation regarding what software to us for making a link budget showing expected EVM (error vector magnitude).

Input: Should be data like drive level, phase/amplitude ripple in filter, compression point of amplifier and frequency error in mixer

Output: EVM

Sincerely/Pär


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Guest
Post subject: EVM
Unread postPosted: Mon Jun 13, 2005 12:59 pm

Most "budgets" have an assumption of linearity hiding in them somewhere.

The essence of EVM is that the greatest portion results from non-linearity. In fact, the EVM of a signal from different amplifiers with the same third-order intercept point can vary significantly.

Good Luck (and I think you'll need it) !


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Guest
Post subject:
Unread postPosted: Mon Jun 13, 2005 1:15 pm

Try systemview from eaglware-elanix


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